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update-zlib.sh
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update-zlib.sh
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#!/bin/sh
set -e
# Shell script to update zlib in the source tree to a specific version
BASE_DIR=$(cd "$(dirname "$0")/../.." && pwd)
DEPS_DIR="$BASE_DIR/deps"
CURRENT_VERSION=$(grep "#define ZLIB_VERSION" "$DEPS_DIR/zlib/zlib.h" | sed -n "s/^.*VERSION \"\(.*\)\"/\1/p")
NEW_VERSION_ZLIB_H=$(curl -s "https://chromium.googlesource.com/chromium/src/+/refs/heads/main/third_party/zlib/zlib.h?format=TEXT" | base64 --decode)
NEW_VERSION=$(printf '%s' "$NEW_VERSION_ZLIB_H" | grep "#define ZLIB_VERSION" | sed -n "s/^.*VERSION \"\(.*\)\"/\1/p")
echo "Comparing $NEW_VERSION with $CURRENT_VERSION"
if [ "$NEW_VERSION" = "$CURRENT_VERSION" ]; then
echo "Skipped because zlib is on the latest version."
exit 0
fi
echo "Making temporary workspace..."
WORKSPACE=$(mktemp -d 2> /dev/null || mktemp -d -t 'tmp')
cd "$WORKSPACE"
mkdir zlib
ZLIB_TARBALL=zlib.tar.gz
echo "Fetching zlib source archive"
curl -sL -o $ZLIB_TARBALL https://chromium.googlesource.com/chromium/src/+archive/refs/heads/main/third_party/$ZLIB_TARBALL
gzip -dc "$ZLIB_TARBALL" | tar xf - -C zlib/
rm "$ZLIB_TARBALL"
cp "$DEPS_DIR/zlib/zlib.gyp" "$DEPS_DIR/zlib/GN-scraper.py" "$DEPS_DIR/zlib/win32/zlib.def" "$DEPS_DIR"
rm -rf "$DEPS_DIR/zlib" zlib/.git
mv zlib "$DEPS_DIR/"
mv "$DEPS_DIR/zlib.gyp" "$DEPS_DIR/GN-scraper.py" "$DEPS_DIR/zlib/"
mkdir "$DEPS_DIR/zlib/win32"
mv "$DEPS_DIR/zlib.def" "$DEPS_DIR/zlib/win32"
perl -i -pe 's|^#include "chromeconf.h"|//#include "chromeconf.h"|' deps/zlib/zconf.h
echo "All done!"
echo ""
echo "Make sure to update the deps/zlib/zlib.gyp if any significant changes have occurred upstream"
echo ""
echo "Please git add zlib, commit the new version:"
echo ""
echo "$ git add -A deps/zlib"
echo "$ git commit -m \"deps: update zlib to $NEW_VERSION\""
echo ""
# The last line of the script should always print the new version,
# as we need to add it to $GITHUB_ENV variable.
echo "NEW_VERSION=$NEW_VERSION"